CN107051330B - Mixing granulator - Google Patents
Mixing granulator Download PDFInfo
- Publication number
- CN107051330B CN107051330B CN201710487590.9A CN201710487590A CN107051330B CN 107051330 B CN107051330 B CN 107051330B CN 201710487590 A CN201710487590 A CN 201710487590A CN 107051330 B CN107051330 B CN 107051330B
- Authority
- CN
- China
- Prior art keywords
- motor
- tooth
- shaft
- mixing
- ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/10—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic in stationary drums or troughs, provided with kneading or mixing appliances
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention belongs to the technical field of granulators, and particularly relates to a mixing and pelletizing integrated mixing and pelletizing machine for mixing and pelletizing materials. The mixing and pelletizing tool comprises a rotor shaft and a tooth-shaped ball twisting disc, wherein one end of the rotor shaft is connected with the tooth-shaped ball twisting disc, the other end of the rotor shaft is provided with a connecting end which can be connected with a stirring shaft of the mixing and pelletizing machine, and two planes of the tooth-shaped ball twisting disc are also provided with linkage ball twisting heads. The invention realizes the integrated production of material mixing, particle manufacturing and particle drying, and has high balling rate, low breaking rate and good balling particle surface quality.
Description
Technical Field
The invention belongs to the technical field of granulators, and particularly relates to a mixing granulator which integrates mixing and balling of materials.
Background
The granulator is a forming machine which can make materials into granular shapes and is widely applied to the fields of chemical industry, petrifaction, pharmacy, food, building materials, mining and metallurgy, environmental protection, printing and dyeing, ceramics, rubber, plastics and the like. In many applications, such as fertilizer, medicine, etc., several different materials are mixed and then granulated. For some specific materials, drying is carried out after granulation to obtain the required finished product.
In the prior art, different materials are usually mixed by a special mixer, the mixed materials are granulated by a special granulator, and the granulated particles are dried by a special dryer to obtain the required finished product. However, the production efficiency is reduced by adopting different equipment from mixing, granulating and drying, and the production mode of multiple equipment increases the occupied area of the equipment and the energy consumption of the production. In addition, although the conventional mixing and stirring blade can also have a partial balling effect, the mixing and stirring blade used in the prior art has poor balling efficiency, low efficiency and large breakage rate of the balled material particles due to the fact that the blade is thin and the edge of the blade is generally straight, and thus the use of the mixing and stirring blade is limited. In addition, the ball kneading mechanism of the granulator in the prior art has large friction force with materials during ball kneading, and the surface smoothness of the formed granules is poor.
Disclosure of Invention
Aiming at the problems, the invention provides a mixing granulator which aims at realizing the integrated production of material mixing, particle manufacturing and particle drying, and has the advantages of high granulation rate, low breakage rate and good surface quality of the granulated particles. The specific technical scheme is as follows:
a mixing granulator comprises a barrel for placing a mixture, a heater for heating materials, a rotary scraper for mixing the mixture in the barrel, a rotatable stirring shaft for connecting a mixing and balling tool and the mixing and balling tool, wherein the mixing and balling tool comprises a rotor shaft and a tooth-shaped ball twisting disc, one end of the rotor shaft is connected with the tooth-shaped ball twisting disc, the other end of the rotor shaft is provided with a connecting end which can be connected with the stirring shaft of the mixing granulator, and linkage ball twisting heads are arranged on two sides of the tooth-shaped ball twisting disc.
Specifically, the cylinder comprises an upper cylinder and a lower cylinder, and the heater is arranged at the bottom end of the outer part of the lower cylinder; an upper motor and a lower motor are arranged on the cylinder body; the upper barrel body is covered on the lower barrel body, the upper motor is mounted at the top end of the outer portion of the upper barrel body and a motor shaft of the upper motor is arranged downwards, the lower motor is mounted at the bottom end of the outer portion of the lower barrel body and a motor shaft of the lower motor is arranged upwards, the motor shaft of the upper motor and the motor shaft of the lower motor are arranged concentrically, mounting holes which are concentric with the motor shaft of the upper motor and the motor shaft of the lower motor are formed in the top end of the upper barrel body and the bottom end of the lower barrel body, a rotatable main shaft is arranged in the lower barrel body in the upward direction and is concentric with the motor shaft of the lower motor, the lower end of the rotatable main shaft is connected with the motor shaft of the lower motor, a rotatable box body is connected to the upper end of the rotatable main shaft, a rotatable scraper blade is fixed on the rotatable box body, a central shaft and a stirring shaft are arranged in the rotatable box body and are concentrically connected with the motor shaft of the upper motor, a central shaft gear is arranged on the central shaft, and a stirring shaft gear is meshed with the stirring shaft gear.
Among the above-mentioned technical scheme, through the upper and lower overall arrangement of motor, central axis gear drive stirring shaft gear's structural configuration for equipment structure is comparatively compact.
In the technical scheme, the linkage ball twisting heads are arranged on the two planes of the tooth-shaped ball twisting disc, so that the tooth-shaped ball twisting disc and the linkage ball twisting heads can act synergistically, and compared with a blade type stirring mode in the prior art, the efficiency of material mixing and balling is greatly improved.
In the technical scheme, in order to enable the mixing granulator to have a drying function, a heater is arranged on a cylinder body of the mixing granulator. Preferably, the heater is disposed at the outer bottom end of the lower cylinder to facilitate the upward flow of the hot air.
In the technical scheme, the balance degree of material mixing in the cylinder and the size of balls formed after mixing are controlled by changing the rotating speeds of the upper motor and the lower motor. For this purpose, the upper motor and the lower motor are frequency-variable speed-adjustable motors, and the frequency-variable speed-adjustable motors are controlled by a controller, such as a PLC (programmable logic controller). The lower motor can be preferably a variable-frequency speed-reducing motor in variable-frequency speed-regulating motors according to the actual rotating speed required by the lower motor.
Generally, when mixing, the upper motor adopts higher rotational speed, and the lower motor adopts medium rotational speed to make the very fast gyration of gyration scraper blade, drive the very fast motion of material in the barrel in order to realize abundant mixing. When the material is formed into balls, the moving direction of the material is opposite to the direction of the toothed ball-kneading disc and the linked ball-kneading head to form the ball-kneading action. In addition, in order to obtain a proper ball kneading speed for the toothed ball kneading disc and the linkage ball kneading head relative to the material and stably and efficiently form balls, the upper motor generally adopts a lower rotating speed, and the lower motor generally adopts a higher rotating speed.
When the device works, the mixture placed in the mixing granulator forms rotary motion in the barrel under the drive of the rotary scraper, the materials are mixed and stirred due to different speeds of the materials, the tooth-shaped ball kneading disc rotates under the drive of the stirring shaft, the rotation direction of the tooth-shaped ball kneading disc is opposite to the rotation direction of the materials in the barrel, so that relative ball kneading motion is formed, and the size of the formed ball particles can be controlled by the rotary speed and the working time of the rotary scraper and the tooth-shaped ball kneading disc.
In order to reduce the surface roughness of the spherical particles, the linkage ball twisting head can be designed to freely rotate relative to the axis of the linkage ball twisting head. For example, the linked ball-rolling head can be installed in the hole of the toothed ball-rolling disc through a rolling bearing so as to realize free rotation. When the ball twisting head works, the friction between the linkage ball twisting head and the material is rolling friction, a rolling extrusion effect is formed, the friction resistance is reduced, and the roughness of the spherical particles is effectively reduced.
As a preferred scheme, the number of teeth on the tooth-shaped ball rolling disc is not less than two, the teeth are uniformly distributed along the circumferential direction, and the tooth-shaped surface of each tooth is an arc surface. The twisting spherical surface participating in the twisting movement is a circular arc surface of the teeth, so that the crushing rate of the balling particles is greatly reduced.
In the above technical scheme, the two surfaces of the tooth-shaped ball rubbing disc comprise an upper surface and a lower surface, the linkage ball rubbing head comprises an upper linkage ball rubbing column and a lower linkage ball rubbing column, the upper linkage ball rubbing column is arranged on the tooth-shaped ball rubbing disc, and the lower linkage ball rubbing column is arranged below the tooth-shaped ball rubbing disc. The upper linkage ball rubbing column and the lower linkage ball rubbing column are designed into a rod shape or a column shape, so that the crushing rate is reduced.
The positions of the upper linkage ball rubbing column and the lower linkage ball rubbing column are arranged at the tooth crest part of the tooth-shaped ball rubbing disc, and the axes of the upper linkage ball rubbing column and the lower linkage ball rubbing column are parallel to the rotation center line of the tooth-shaped ball rubbing disc.
Usually, the teeth on the toothed ball twisting disc are uniformly distributed along the circumferential direction, and the teeth are the same in shape and size.
As a further improvement, the number of teeth of the uniformly distributed teeth can be designed to be more than 4 and even number, the teeth are divided into long teeth and short teeth according to the tooth length, and the long teeth and the short teeth are distributed in a crossed manner in the arrangement sequence of the long teeth and the short teeth in the circumferential direction. The advantages are that the mixing and balling of the materials are more uniform, and the arrangement of the long and short teeth is also beneficial to reducing the vibration of the tooth-shaped ball rubbing disc within a certain rotating speed frequency range, and improving the running stability of the machine.
Considering that the lower linkage ball rubbing column has a small gap from the bottom of the cylinder body, in order to reduce friction, effectively reduce adhesion between the ball rubbing column and materials and improve the service life of the lower linkage ball rubbing column, the material of the lower linkage ball rubbing column is preferably ultrahigh molecular polyethylene material.
The rotor shaft used as a mixed balling tool has a cylindrical connecting end connected with the stirring shaft, and the cylindrical connecting end is provided with a key groove. Such a structure is relatively applicable to small-medium size mixing granulator, and is favorable to mixing balling tool's quick replacement.
As another optional connecting structure of the rotor shaft and the stirring shaft, the connecting end of the rotor shaft connected with the stirring shaft can be designed into flange connection, and the connecting structure has the advantage of better rigidity and is suitable for medium-sized and large-sized mixing granulators.
In order to improve the running stability of the mixing balling tool and reduce the vibration and noise of the machine, the rotor shaft can adopt an integral hollow shaft structure, meanwhile, the matching of the connecting part of the rotor shaft and the stirring shaft can adopt gapless conical surface matching, and the conicity of the conical surface can be set as Morse conicity or 1:20, can also be set to be 7:24, standard taper. The material of the rotor shaft can be high-rigidity material such as high-speed steel. In addition, the hybrid balling tool is integrally dynamically balanced during manufacturing.
As an improvement, a plurality of tooth-shaped ball rubbing discs can be assembled on the rotor shaft of the mixed ball forming tool, so that the working efficiency is further improved.
The invention has the beneficial effects that:
firstly, a rotary scraper and a mixing balling tool are arranged in a barrel, a heater is arranged at the bottom of the barrel, a variable-frequency speed-regulating motor is adopted as the motor, and PLC control is adopted, so that the integration of material mixing, particle manufacturing and drying is realized. The layout of two other motors is upper and lower, adopts frequency conversion speed regulation and saves special reduction gear, and its structure is more compact, and equipment area is little.
Secondly, the two sides of the tooth-shaped ball rubbing disc of the mixing and balling tool are provided with the linkage ball rubbing heads, so that the uniformity of material mixing and the balling efficiency are improved, and the accumulation of residual materials at the bottom is effectively reduced due to the arrangement of the lower linkage ball rubbing column.
Thirdly, the twisting surface of the tooth-shaped ball twisting disc is an arc surface, and the linkage ball twisting head is cylindrical, so that the defect that the stirring head in the traditional mixing and stirring tool is a sharp blade and is easy to cause high breakage rate is overcome. Meanwhile, the lower linkage ball twisting column arranged close to the bottom of the cylinder body also effectively reduces the accumulation of the mixture in the cylinder body, so that the materials at the bottom of the cylinder body can be fully pelletized.
Fourthly, the teeth of the tooth-shaped ball rubbing disc adopt long teeth and short teeth which are distributed in a crossed manner, so that the uniformity of material mixing is improved, and the running stability of the mixing and stirring tool in a certain frequency range is improved.
Fifthly, the rotor shaft of the mixing balling tool adopts gapless conical surface fit, which can improve the concentricity of installation and improve the dynamic balance performance of the operation of the mixing balling tool. Meanwhile, the rotor shaft adopts an integral hollow structure and uses a high-rigidity material, so that the vibration resistance of the mixing balling tool and the mixing granulator is greatly improved, and the noise of the machine is effectively reduced.
Sixthly, the linkage ball twisting head is arranged in a hole of the tooth-shaped ball twisting disc through the rolling bearing to realize free rotation, so that the friction between the linkage ball twisting head and the material becomes rolling friction to form a rolling extrusion effect, the friction resistance of the linkage ball twisting head relative to the material during ball twisting movement is reduced, and the surface roughness of the formed spherical particles is reduced.
Drawings
FIG. 1 is a schematic structural diagram of an external shape of a mixing granulator;
FIG. 2 isbase:Sub>A sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view C-C of FIG. 2;
FIG. 4 is a right side view of FIG. 1;
FIG. 5 is a top view of FIG. 1;
FIG. 6 is a schematic diagram of the configuration of a mixing and pelletizing tool in the mixing and pelletizing machine;
FIG. 7 is a right side view of FIG. 6;
FIG. 8 is a structural schematic diagram of a modified design of the toothed ball rolling disc in FIG. 7;
FIG. 9 is a schematic view of a hybrid ball forming tool with a plurality of toothed ball rolling discs;
FIG. 10 is a schematic structural view showing a cylindrical surface at the connecting end of the mixing and pelletizing tool connected to the mixing shaft of the mixing and pelletizing machine;
FIG. 11 is a schematic structural view showing that the connecting end of the mixing and pelletizing tool connected with the stirring shaft of the mixing and pelletizing machine is a conical surface;
FIG. 12 is a schematic diagram of the application of a mixing and pelletizing tool in a mixing and pelletizing machine;
fig. 13 is a schematic structural view of a freely rotatable upper-linkage ball rubbing column.
In the figure: 100. the device comprises a cylinder body, 101, a stirring shaft, 102, an upper cylinder body, 103, a lower cylinder body, 104, an upper motor, 104-1, a motor shaft of the upper motor, 105, a lower motor, 105-1, a motor shaft of the lower motor, 106, a rotatable main shaft, 107, a rotatable box body, 108, a rotatable scraper blade, 109, a central shaft, 110, a central shaft gear, 111, a stirring shaft gear, 112 and a heater; 113. a controller 114, a feed hopper, 115, a discharge hopper, 116, a door assembly, 117, and a cylinder;
in the figure: 200. a mixed ball forming tool, 201, a rotor shaft, 201-1, a cylindrical surface on the rotor shaft, 201-2, a key groove on the rotor shaft, 201-3, a flange on the rotor shaft, 201-4, a conical surface on the rotor shaft, 202, a tooth-shaped ball rolling disc, an arc surface of a tooth on the 202-1 tooth-shaped ball rolling disc, an addendum part of the 202-2 tooth-shaped ball rolling disc, 202-3, a long tooth, 202-4, a short tooth, 203, an upper linkage ball rolling column, 204, a lower linkage ball rolling column, 205, a retainer ring, 206, a lower seal plate, 207, an upper seal plate, 208, a seal ring, 209 and a rolling bearing.
Detailed Description
The present invention will be described with reference to examples.
Fig. 1 to 13 show a mixing granulator, which comprises an upper cylinder 102, a lower cylinder 103, an upper motor 104 and a lower motor 105, the upper cylinder 102 is covered on the lower cylinder 103, the upper motor 104 is arranged at the top end of the outer part of the upper cylinder 102, a motor shaft 104-1 of the upper motor is arranged downwards, the lower motor 105 is mounted at the bottom end of the outer part of the lower cylinder 103 and the motor shaft 105-1 of the lower motor is arranged upwards, the motor shaft 104-1 of the upper motor and the motor shaft 105-1 of the lower motor are arranged concentrically, the top end of the upper cylinder 102 and the bottom end of the lower cylinder 103 are provided with mounting holes concentric with a motor shaft 104-1 of the upper motor and a motor shaft 105-1 of the lower motor, a rotatable main shaft 106 is arranged at the bottom end of the inner part of the lower cylinder 103 in the upward direction, the rotatable main shaft 106 is concentric with a motor shaft 105-1 of the lower motor, and the lower end of the rotatable main shaft 106 is connected with a motor shaft 105-1 of the lower motor, the upper end of the rotatable main shaft 106 is connected with a rotatable box body 107, a rotatable scraper 108 is fixed on the rotatable box body 107, a central shaft 109 and a stirring shaft 101 are arranged in the rotatable box body 107, the central shaft 109 is concentrically connected with a motor shaft 104-1 of the upper motor, a central shaft gear 110 is arranged on the central shaft 109, a stirring shaft gear 111 is arranged on the stirring shaft 101, the central shaft gear 110 is meshed with the stirring shaft gear 111, a mixing and balling tool 200 is connected on the stirring shaft 101, the mixing and balling tool 200 comprises a rotor shaft 201 and a tooth-shaped ball twisting disc 202, one end of the rotor shaft 201 is connected with a tooth-shaped ball rubbing disc 202, the other end of the rotor shaft is provided with a connecting end which can be connected with a stirring shaft 101 of the mixing granulator, and linkage ball rubbing heads are arranged on two surfaces of the tooth-shaped ball rubbing disc 202.
In the above technical solution, two surfaces of the tooth-shaped ball rolling disc 202 include an upper surface and a lower surface, the linkage ball rolling head includes an upper linkage ball rolling column 203 and a lower linkage ball rolling column 204, the upper linkage ball rolling column 203 is arranged on the tooth-shaped ball rolling disc, and the lower linkage ball rolling column 204 is arranged below the tooth-shaped ball rolling disc.
In this embodiment, a heater 112 is also provided on the barrel of the mixing granulator. The heater may be provided on the outer circumference of the cylinder, but preferably, the heater is provided at the outer bottom end of the lower cylinder 103, which facilitates the upward flow of the hot air. The heating element in the heater 112 may be a heating wire, a ceramic heating plate, a far infrared heating plate, or the like.
In this embodiment, the upper motor 104 and the lower motor 105 are variable frequency speed motors and are controlled by the PLC controller 113.
Preferably, the linkage ball twisting head (including the upper linkage ball twisting column 203 and the lower linkage ball twisting column 204) is mounted on the tooth-shaped ball twisting disc 202 through a rolling bearing 209. As shown in fig. 13, which is an embodiment that the upper linkage ball rubbing column 203 is installed on the tooth-shaped ball rubbing disc 202 through a rolling bearing 209, the rolling bearing 209 is arranged in the installation hole of the tooth-shaped ball rubbing disc 202, and the upper linkage ball rubbing column 203 is installed in the hole of the rolling bearing 209 and is axially fixed by a retaining ring 205. A lower sealing plate 206 and an upper sealing plate 207 are arranged on two planes of the tooth-shaped ball twisting disc 202, and a sealing ring 208 is arranged at the matching position of the upper sealing plate 207 and the upper linkage ball twisting column 203.
In order to realize the balance of the tooth-shaped ball rolling disc, the number of teeth of the tooth-shaped ball rolling disc 202 is not less than two and is uniformly distributed along the circumferential direction; in order to reduce the crushing rate, the tooth-shaped surface 202-1 of the tooth-shaped ball rubbing disc 202 is provided with a circular arc surface.
In addition, the upper linkage ball rubbing column 203 and the lower linkage ball rubbing column 204 are arranged at the tooth crest part of the tooth-shaped ball rubbing disc 202, and the axes of the upper linkage ball rubbing column 203 and the lower linkage ball rubbing column 204 are parallel to the rotation center of the tooth-shaped ball rubbing disc 202; preferably, the number of the teeth of the uniformly distributed teeth is more than 4 and even, the teeth are divided into long teeth 202-3 and short teeth 202-4 according to the tooth length, and the teeth are distributed in a crossed manner in the arrangement order of the long teeth and the short teeth in the circumferential direction.
The connection mode of the rotor shaft 201 and the stirring shaft 101 can adopt any one of the following three modes:
firstly, the connecting end of the rotor shaft 201 connected with the stirring shaft 101 is a cylindrical surface 201-1, and a key groove 201-2 is arranged on the cylindrical surface.
And secondly, the connecting end of the rotor shaft 201 connected with the stirring shaft 101 is a flange 201-3, and a bolt hole is arranged on the flange.
And thirdly, the rotor shaft is an integral hollow shaft, the rotor shaft is made of high-speed steel, and the joint of the rotor shaft and the stirring shaft is matched with a conical surface 201-4.
In the case of a large-sized mixing and granulating machine, two or more toothed kneading disks as shown in fig. 9 may be mounted on the rotor shaft in combination.
Fig. 12 is a schematic diagram of the application principle of the hybrid ball-forming tool in the hybrid granulator, in which the rotary scraper 108 and the hybrid ball-forming tool 200 are mounted on the rotatable box 107, when the rotatable box 107 rotates, the rotary scraper 108 drives the material in the barrel 100 to perform circumferential rotary stirring motion, the hybrid ball-forming tool 200 performs overall circumferential motion under the driving of the rotatable box, and at the same time, the rotor shaft 201 of the hybrid ball-forming tool 200 also performs rotational motion to drive the toothed ball-rubbing disc 202 to rotate. When the rotatable box body rotates at a high speed and the tooth-shaped ball rubbing disc 202 moves at a medium speed, the materials in the cylinder move mainly in a mixed motion; when the rotatable box body moves at a low speed and the tooth-shaped ball rubbing disc 202 rotates at a higher speed, the arc surface 202-1 on the tooth-shaped ball rubbing disc 202 and the cylindrical surface on the linkage ball rubbing head (comprising the upper linkage ball rubbing column 203 and the lower linkage ball rubbing column 204) form ball rubbing motion relative to the materials, and the mixed materials are rubbed into spherical particles.
In this embodiment, the rotary squeegee mounted on the rotatable case is formed into an L-shaped rotary squeegee.
The upper linkage ball rubbing column and the lower linkage ball rubbing column are connected with the tooth-shaped ball rubbing disc through hole-shaft interference fit or threaded connection.
The upper linkage ball rubbing column and the lower linkage ball rubbing column in the embodiment are cylindrical. As an improvement, the shapes of the upper linkage ball rubbing column and the lower linkage ball rubbing column can also be designed into specific shapes. For example, the linkage ball-rolling column and the lower linkage ball-rolling column can be designed into a conical rod shape or other special shapes in order to change the direction of the ball-rolling.
In order to reduce the surface roughness of the spherical particles, the linkage ball twisting head (comprising the upper linkage ball twisting column 203 and the lower linkage ball twisting column 204) can be designed to freely rotate relative to the axis of the linkage ball twisting head. Fig. 13 is a schematic structural diagram of an upper linkage ball rubbing column capable of freely rotating. In the figure, the upper interlocking ball rolling column 203 is mounted in a hole of the toothed ball rolling disc 202 through a rolling bearing 209 and is axially fixed by a retainer ring 205, and the rolling bearing 209 is sealed by a lower sealing plate 206, an upper sealing plate 207 and a sealing ring 208. Because the upper linkage ball rubbing column 203 can rotate, the friction resistance of the upper linkage ball rubbing column relative to the material is reduced during the ball rubbing movement, a rolling extrusion effect is formed, and the roughness of the ball forming particles is reduced. Similarly, the lower interlocking ball rolling column 204 may be designed to freely rotate via a rolling bearing 209.
In addition, for the occasion with special requirement, for example, the condition that the surface of the sphere particles is required to be rough, the circular arc surface of the tooth-shaped sphere rolling disc and the cylindrical surface of the linkage sphere rolling head can be made into rough surfaces.
The granulator comprises the following working steps:
step 1: the materials to be mixed are added into the cylinder through a feed hopper 114;
step 2: the granulator runs at a high speed by an upper motor and runs at a medium speed by a lower motor under the control of the PLC 113, and the mixed materials are fully stirred in the cylinder;
and step 3: and after the preset mixing time is reached, the upper motor runs at a low speed, the lower motor runs at a high speed, and the mixed materials are twisted into a spherical shape. The size of the balling particles is controlled by presetting the rotating speed of the upper motor and the lower motor and the balling time.
And 5: the heater 112 is turned on to heat as required, the pelletized particles are dried, and the heater is turned off.
Step 6: the cylinder 117 is actuated and the door assembly 116 opens to form pellets into the hopper 115.
In the above steps, a proper amount of binder can be added into the cylinder between the step 2 and the step 3 according to requirements.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (9)
1. A mixing granulator comprises a barrel for placing mixture, a rotary scraper for mixing the mixture in the barrel, a mixing balling tool and a rotatable stirring shaft connected with the mixing balling tool, and is characterized in that: the mixing granulator is provided with a heater for heating materials, the mixing balling tool comprises a rotor shaft and a tooth-shaped ball twisting disc, one end of the rotor shaft is connected with the tooth-shaped ball twisting disc, the other end of the rotor shaft is provided with a connecting end which can be connected with a stirring shaft of the mixing granulator, and two surfaces of the tooth-shaped ball twisting disc are provided with linkage ball twisting heads;
the barrel comprises an upper barrel and a lower barrel, and the heater is arranged at the bottom end of the outer part of the lower barrel; an upper motor and a lower motor are arranged on the cylinder body; the upper cylinder body is covered on the lower cylinder body, the upper motor is installed at the top end of the outer portion of the upper cylinder body, the motor shaft of the upper motor is arranged downwards, the lower motor is installed at the bottom end of the outer portion of the lower cylinder body, the motor shaft of the lower motor is arranged upwards, the motor shaft of the upper motor and the motor shaft of the lower motor are arranged concentrically, mounting holes concentric with the motor shaft of the upper motor and the motor shaft of the lower motor are formed in the top end of the upper cylinder body and the bottom end of the lower cylinder body, a rotatable main shaft is arranged in the inner bottom end of the lower cylinder body in the upward direction, the rotatable main shaft is concentric with the motor shaft of the lower motor, the lower end of the rotatable main shaft is connected with the motor shaft of the lower motor, the upper end of the rotatable main shaft is connected with a rotatable box body, a rotatable scraper is fixed on the rotatable box body, a central shaft and a stirring shaft are arranged in the rotatable box body, the central shaft and the stirring shaft are concentrically connected, a central shaft gear is arranged on the central shaft, a stirring shaft gear is arranged on the stirring shaft, and is meshed with a stirring shaft gear;
the tooth-shaped ball twisting disc is provided with at least two tooth numbers which are uniformly distributed along the circumferential direction, and the tooth-shaped surface of each tooth is an arc surface; the tooth-shaped ball rubbing disc comprises an upper surface and a lower surface, the linkage ball rubbing head comprises an upper linkage ball rubbing column and a lower linkage ball rubbing column, the upper linkage ball rubbing column is arranged on the tooth-shaped ball rubbing disc, the lower linkage ball rubbing column is arranged below the tooth-shaped ball rubbing disc, and the upper linkage ball rubbing column and the lower linkage ball rubbing column are designed into a rod shape or a column shape.
2. A mixing granulator according to claim 1, characterized in that: at least one of the upper motor and the lower motor is a variable-frequency speed-regulating motor.
3. A mixing granulator according to claim 1, characterized in that: the upper motor and the lower motor are controlled by a PLC controller.
4. A mixing granulator according to claim 1, characterized in that: the linkage ball twisting head is arranged on the tooth-shaped ball twisting disc through a rolling bearing.
5. A mixing granulator according to claim 1, characterized in that: the upper linkage ball rubbing column and the lower linkage ball rubbing column are arranged at the tooth crest part of the tooth-shaped ball rubbing disc, and the axes of the upper linkage ball rubbing column and the lower linkage ball rubbing column are parallel to the rotation central line of the tooth-shaped ball rubbing disc; the number of the teeth of the uniformly distributed teeth is more than 4 and even, the teeth are divided into long teeth and short teeth according to the tooth length of the teeth, and the long teeth and the short teeth are distributed in a crossed mode in the circumferential direction according to the arrangement sequence of the long teeth and the short teeth.
6. A mixing granulator according to claim 1, characterized in that: the connecting end of the rotor shaft connected with the stirring shaft is a cylindrical surface or a flange, the cylindrical surface is provided with a key groove, and the flange is provided with a bolt hole.
7. A mixing granulator according to claim 1, characterized in that: the rotor shaft is an integral hollow shaft, the rotor shaft is made of high-speed steel, and the joint of the rotor shaft and the stirring shaft is matched with a conical surface.
8. A mixing granulator according to claim 1, characterized in that: more than two tooth-shaped ball rubbing discs are assembled on the rotor shaft.
9. A mixing granulator according to claim 4, characterized in that: a rolling bearing is arranged in the mounting hole of the tooth-shaped ball rubbing disc, and the upper linkage ball rubbing column is mounted in the hole of the rolling bearing and axially fixed by adopting a check ring; a lower sealing plate and an upper sealing plate are arranged on two planes of the tooth-shaped ball twisting disc, and a sealing ring is arranged at the matching position of the upper sealing plate and the upper linkage ball twisting column; the lower linkage ball rubbing column is designed into a structure which realizes free rotation through a rolling bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710487590.9A CN107051330B (en) | 2017-06-23 | 2017-06-23 | Mixing granulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710487590.9A CN107051330B (en) | 2017-06-23 | 2017-06-23 | Mixing granulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107051330A CN107051330A (en) | 2017-08-18 |
| CN107051330B true CN107051330B (en) | 2023-03-24 |
Family
ID=59613385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710487590.9A Active CN107051330B (en) | 2017-06-23 | 2017-06-23 | Mixing granulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107051330B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109647280A (en) * | 2018-12-19 | 2019-04-19 | 江阴市创裕机械有限公司 | A kind of heat radiation hot type mixed granulation machine of double pillar constructions |
| CN113584302B (en) * | 2021-07-28 | 2023-07-25 | 江阴市创裕机械有限公司 | Continuous granulating process for steel mill dust |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4756625A (en) * | 1986-06-30 | 1988-07-12 | Sealant Equipment & Engineering, Inc. | Mixing apparatus for fluid materials |
| CN2429253Y (en) * | 2000-06-21 | 2001-05-09 | 陈炀 | Double arch pelletizing disc |
| CN2494357Y (en) * | 2001-07-02 | 2002-06-05 | 张治容 | Vertical humidifying granulator |
| CN200961120Y (en) * | 2006-10-25 | 2007-10-17 | 张明群 | Sphere pelleting machine for fertilizer |
| WO2011124337A1 (en) * | 2010-03-29 | 2011-10-13 | Haver Engineering Gmbh | Pelletizing device |
| CN202570089U (en) * | 2012-04-06 | 2012-12-05 | 广东科达机电股份有限公司 | Particle optimizing machine |
| CN103084120A (en) * | 2013-01-16 | 2013-05-08 | 中国重型机械研究院股份公司 | Forced feeding wheel-grinding type pelletizer |
| CN203610179U (en) * | 2013-12-28 | 2014-05-28 | 中国地质科学院郑州矿产综合利用研究所 | Nonmetal mining stirring mill |
| CN104001450A (en) * | 2014-06-13 | 2014-08-27 | 刘春� | Rotating bucket type granulator |
| CN104525046A (en) * | 2015-01-07 | 2015-04-22 | 安徽鸿源机械制造有限公司 | Controllable rotary-extrusion type crop waste recycling granulator |
| CN204891781U (en) * | 2015-09-09 | 2015-12-23 | 广州森弘电气机械有限公司 | Discrete formula dispersion impeller |
| CN207119334U (en) * | 2017-06-23 | 2018-03-20 | 江阴市创裕机械有限公司 | A kind of mixed granulation machine |
-
2017
- 2017-06-23 CN CN201710487590.9A patent/CN107051330B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4756625A (en) * | 1986-06-30 | 1988-07-12 | Sealant Equipment & Engineering, Inc. | Mixing apparatus for fluid materials |
| CN2429253Y (en) * | 2000-06-21 | 2001-05-09 | 陈炀 | Double arch pelletizing disc |
| CN2494357Y (en) * | 2001-07-02 | 2002-06-05 | 张治容 | Vertical humidifying granulator |
| CN200961120Y (en) * | 2006-10-25 | 2007-10-17 | 张明群 | Sphere pelleting machine for fertilizer |
| WO2011124337A1 (en) * | 2010-03-29 | 2011-10-13 | Haver Engineering Gmbh | Pelletizing device |
| CN202570089U (en) * | 2012-04-06 | 2012-12-05 | 广东科达机电股份有限公司 | Particle optimizing machine |
| CN103084120A (en) * | 2013-01-16 | 2013-05-08 | 中国重型机械研究院股份公司 | Forced feeding wheel-grinding type pelletizer |
| CN203610179U (en) * | 2013-12-28 | 2014-05-28 | 中国地质科学院郑州矿产综合利用研究所 | Nonmetal mining stirring mill |
| CN104001450A (en) * | 2014-06-13 | 2014-08-27 | 刘春� | Rotating bucket type granulator |
| CN104525046A (en) * | 2015-01-07 | 2015-04-22 | 安徽鸿源机械制造有限公司 | Controllable rotary-extrusion type crop waste recycling granulator |
| CN204891781U (en) * | 2015-09-09 | 2015-12-23 | 广州森弘电气机械有限公司 | Discrete formula dispersion impeller |
| CN207119334U (en) * | 2017-06-23 | 2018-03-20 | 江阴市创裕机械有限公司 | A kind of mixed granulation machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107051330A (en) | 2017-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201619894U (en) | Double-impeller uniform feeder | |
| CN107051330B (en) | Mixing granulator | |
| SU963451A3 (en) | Two-stage extruder for thermoplasting compositions | |
| CN101811002B (en) | Single-cylinder differential quality adjuster | |
| CN203694942U (en) | Self-cleaning double spiral belt differential mixing machine | |
| CN207119334U (en) | A kind of mixed granulation machine | |
| CN109049385A (en) | A kind of stirred reactor of mixed rouge and resin mixing | |
| CN107051329B (en) | A mix balling tool for mixing granulator | |
| CN205109567U (en) | Pellet granulator | |
| CN201664591U (en) | High-efficiency conditioner | |
| CN102974270A (en) | Novel mixed granulating and drying integrated machine | |
| CN205219678U (en) | Screw rod and box -like mixing extrusion device of multiple perpendicular turbine set | |
| CN205219679U (en) | Screw rod and box -like mixer -extruder of multiple horizontal turbine set | |
| CN205700445U (en) | A kind of setastine hydrochloride oscillating granulator of dry discharging | |
| CN104985776B (en) | Plane multi-stage coaxial disc type extruding machine | |
| CN105346051B (en) | Mixing extruder combining threaded rod with multiple horizontal worm gears | |
| CN109174379B (en) | Paint production process | |
| CN205340691U (en) | Conical mixing machine | |
| CN103537227B (en) | Vibrating and discharging double-roller pelletizing machine | |
| CN208018570U (en) | A kind of spheric granules organic matter production comminutor | |
| CN203692494U (en) | Tempering device for fodders | |
| CN1044786C (en) | Processing machinery of the transfermix type | |
| CN202315822U (en) | Device for efficiently producing micro pills | |
| CN105235181B (en) | Combined type mixing and plastic extruding device provided with screw and multiple spiral discs | |
| CN203697248U (en) | Cement raw slurry stirring barrel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |